Extension table



July l9, 1935. c. J. MILLER 2,007,475

EXTENSION TABLE Filed Nov. 4, 1955 W' j 5L +5,27@ 26 Patented July 9, 1935 UNITED 1 STATES PATENT oEEicE 4 Claims.

This invention relates to extension tables and its object is to provide for storing fan extension leaf beneath the top of the sections of the table and for positioning the extension leaf between the sections and in the planerthereof without removing the. leaf from the table.

Another object is to store an extension leaf in a generally lengthwise position beneath the top of the sections of the table and mount'it so that l0 it can be swung easily to transverse position between the sections of the 'table top andautomatically raised into the planethercof without removing the leaf from the table or lifting the leaf manually. v

A further object is to mount an extension leaf for a table in the frame of the table so that it can be swung and lowered to storage position generally lengthwise of the table and beneath the top thereof and swung to ltransverse posithe top of the table without moremanual lmanipulation than is required to swing the leaf on its swivel. l

And a further object is to mount the sections positions and at all times be Supported on the .aprons of the frame Vof the table.

In the accompanying drawing illustrating a selected embodiment of the invention: l

Fig. 1 is a bottom plan View of the table with the sections closed in abutting relation and the extension leaf in storage position, one leg being shown in section.

Fig. 2 is a bottom plan view of the table with the extension leaf arranged in position between the sections of thetop.

Fig. 3 is -a sectional View on the line 3--3 of Fig. 1.

Fig. 4 is a detail sectional view on the line 4-4' of Fig. 2. Y

Fig. 5 is a detail sectional View on the line 5 5 of Fig. 1.

Referring to the drawing, the frame .of the table comprises the side aprons 6, the end aprons 1, and the legs 8 secured together by suitable clamps 9. A swivel block IE] is mounted centrally within the frame on cross bars I I which are supported at their ends on strips I2 secured to the side aprons Ii.

'Ihe sections I3 of thetop of the table are arranged to slide to and from each other on the frame and, to make both sections slide simultaneously when one section is manually moved, the two sections are connected by links I4, I4 to the ends of a two-arm lever I5 which is pivoted .of anextension table to move to open and closed.

(Cl. SIL-47) at lllzto the underside of the block I6. The outer ends of the links I4, I are pivoted on blocks il' fastened to the underside of the sections and these blocks form stops for the Vextension leaf IB when the latteris in storage position, Fig. 1. L5 The extension leaf is centrally swiveled, being provided with a swivel pin 'IQ which engages an opening E@ disposedin the block centrally of the table. The pivot l of the lever I5 is located at one :side of the swivel of the extension leaf and for that reason the link Iii' "is longer than the link i4 to make'the sections of the top move uniformly. i Oppositely disposed cams 2l in the form ofiinclines .are provided on the underside of the extensionleaf i8 with rests 2l and stops 22 at the top of the inclines, the cams and stops being Aconvenientlymounted on cleats i3 which are secured 'on` the underside of the extension leaf and extend transversely thereof.

tion and automatically raised to the plane of A pair of tracks fis, .25 Vis mounted on each of :the side aprons 6 Vand forms a part thereof,V the two tracks 'irl being longer than ,the two tracks 2:5 `to permit the swivel movement ofthe extension Aleaf :I 8 as hereafter described. Upright bearing rollers 2-5 are mounted on the tracks to supv; port the sections i3 and horizontal rollers 21 are `also mounted on the tracks to engage the guide rails 28 fastened to the underside of the sections. These rollers facilitate the sliding movement of `the sections on the frame and these sections are at all times supported by the side aprons of the frame. The horizontal rollers El and the guide rails 28 insure even movement of the sections and prevent them from wobbling in their inY and out movement. besides holding the `sections as- 35 sembled at all times with the frame. The kopposing -edges ofthe -sections and the extension leaf are provided with dowels 29 as usual in table tops.

The block Ill, the cross bars IIy and the strips I2 are a part of the main frame but constitute a swivel frame for the lever I5 and the extension leaf I8 and they are suiiiciently below the table top to permit the extension leaf to be swung into storage position beneath the sections I3 as shown in Fig. 1. The spaces between the inner ends of the tracks 24 and 25 on the side aprons accommodate the corners of the extension leaf in its swinging movement and in storage position opposite corners of the extension leaf project over the side aprons. In this storage position the extension leaf is supported on the swivel block I0, the cleats 23 and the side aprons t, and the sections of the top are supported on the tracks and side aprons. To extend the table, one section is 55 pulled outwardly and through the medium of the lever and links the other section moves correspondingly. Both sections may be manually pulled but in such case they will also move correspondingly because of the lever and link connections. When the sections are thus extended the extension leaf will be exposed through the opening between the sections and in the position shown in Fig. 1. The extension leaf being swiveled centrally on the xed block i0 can now be swung with very little effort to a position transversely of the table between the sections I3 and when the cam inclines 2l engage the cross bars Il the cams will ride up on the cross bars until the stops 22 engage the cross bars and by which time the leaf is then elevated to the plane of the sections I3. The sections I 3 are preferably extended to their limit as determined by the engagement of the blocks I1 with the end aprons 1, as shown in broken lines in Fig. 2, so that ample space will be provided for positioning the extension leaf between the sections, but it is not necessary that the sections should be fully extended. After the extension leaf has been raised to the plane of the sections the latter are closed upon the extension leaf, as shown in full lines in Fig. 2, and in that position the sections are supported on the side aprons and the leaf is supported on the rests 2| of the cams and upon lugs 30 which are provided on the tracks 24 to compensate for the slight elevation of the sections above the tracks caused by the rollers 26, as shown in Fig. 5. Stops 3| may be provided on the underside of the sections to engage the end aprons at the limit of the inward movement of the sections, and a stop pin 32 may also be provided on the swivel leaf to engage the swivel block and cooperate with the block l1 to limit the swivel movement of the leaf to storage position. I prefer that the extension leaf shall clear the sections in its swivel movements and in storage position, as shown in Fig. 3, to avoid marring the top face of the leaf, but in storage position the extension leaf will form a support for the sections if an unusual weight is placed upon the table at the middle thereof because in storage position the extension leaf is supported on the swivel block frame.

The invention provides a simple means whereby the extension leaf may be stored out of sight and out of the way beneath the table top and may be swung into position in the plane of the sections of the table to provide an extended top. The leaf is always in assembled position with the other parts of the table and it is easily moved to position to extend the table top and back to storage position without requiring it to be manually lifted or moved except to impart a. swivel action thereto.

I have shown the invention embodied in a table of simple form in which the details of construction may be changed as required for tables of different kinds and sizes and I reserve the right to make such changes as may be necessary or desirable to adapt the invention for different kinds and sizes of tables or for other purposes within the scope of the following claims:

I claim:

l. An extension table comprising a frame having side aprons, tracks on said aprons, top sections slidable on said tracks, guide rails on said top sections, and rollers on said tracks engaging said guide rails to guide the end sections in their movement on the frame.

2. An extension table comprising a frame having side aprons, tracks on said aprons, upright rollers and horizontal rollers on said tracks, top sections movable on said upright rollers, and guide rails on the top sections engaged with said horizontal rollers to insure even movement of the sections. Y

3. An extension table comprising a frame having side aprons, tracks extending above said aprons, top sections movable on said tracks, an extension leaf swiveled on the frame to swing between storage position beneath the top sections and extension position transverse of the table, the tracks on each apron being spaced apart to permit corners of the leaf to pass therebetween and over the aprons in the swiveling movement of the leaf.

4. An extension table comprising a frame, top sections movable on the frame, a swivel block on the frame having a centrally disposed opening therein, an extension leaf having a centrally disposed swivel pin engaged with said opening in the block, said extension leaf being swiveled on said block to swing between storage position beneath the top sections and extension position transverse of the table, a lever pivoted centrally to said swivel block at one side of the opening therein, links of different length attached to the ends of said lever and to insure corresponding movement of the sections, and inclined cams on the extension leaf arranged to engage the frame for lifting the leaf into position between the top sections and in the plane thereof when the leaf is swung to transverse position to extend the table, said cams having rests and stops at the top of the inclines to retain the extension leaf in registration with the top sections of the table to complete the table top.

, CHARLES J. MILLER 

